<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>背景图片插入</title>
		<style>
			div {
				width: 1000px;
				height: 1000px;
				background-image: url("images/logo.png");
			}
		</style>
	</head>
	<body>
		<img src="images/0.jpg" alt="">
		<img src="images/logo.png" alt="">
		<!-- 到底是谁的背景 -->
		<div></div>
	</body>
</html>